I've come across many of these items so far, I steal them at every opportunity of course, but the problem is, the NPCs guarding them are often stationary and refuse to move. Is there some kind of stealth skill in this game I'm not aware of? Do I just keep waiting for the NPC to move at some point in the future, perhaps at a later point in the game? Or do I need to kill them somehow if that's at all possible?